If you were installing a variant like AutoCAD LT 2023, the product key would change (specifically to 057O1 ), even though the core interface appears similar. The Role of Serial Numbers in AutoCAD 2023
: 001O1 (The fourth character is the letter "O", not the number zero)
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To use AutoCAD 2023, you need to enter a valid serial number and product key during the installation process. Without these, you will not be able to activate the software and use its full features. The serial number and product key are used to: